The system of yoga popularized by Sri K. Pattabhi Jois, considered a modern form of traditional yoga. This method of yoga features a progressive set of asana postures that are synchronized with the breath via ujjayi pranayama, which creates an intense and purifying internal heat (agni), profound stretching, muscular strength, and mental focus.
The classical system of physical yoga, featuring asana, pranayama, and pratyahara practices. Beginning with the Surya Namaskar, a series of postures is then held in perfect alignment with a resting pose in between. Emphasis is on proper breathing, correct alignment, and stamina.
The king of all yogas combines the spiritual practices of the eightfold path according to the Yoga Sutras of Patanjali, with focus on the final three levels: dharana, dhyana, and samadhi. Here is where the yogi works towards Self/God realization through meditative practice.